Attachment for leather-skiving machines



N. l. FOSTER AND H. B. LU P|EN.-

ATTACHMENT FOR LEATHER SKIVING MACHINES.

APPLICATION HLED JULY 19,1920.

. q g gqw Patented Jan. MT, 1922.,

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NELLIE I. FOSTER MID B. LUIPEEN, OF llIANGl-ZESTEB, NEW :i-IAIVIPSHERE.

ATTAGHE TENT FOR LEATHER-SK ENG MACHINES.

fl. Alli; ,2499.

Application filed July 19,

Q0171 am it 122 [43 concern t known that. we, h nLL-m l. Fos'rnn and yinl3. LUPIEN, citizens of the United es of merica, and residents of thecity of Manchester, in the State of New Ham have invented certain newand useful l. nu veinents in Attachments for Leather- ..ving lilachines,of which the following is a specification.

Our invention relates to leather skiving machines such as are in commonuse in the shoe industry for skiving upper leather, whereby a skiving isremoved in a continuous strip.

Briefly, the machine, which forms no part of our invention, comprises afeed roll, a presser foot for holding the leather to be skived againstthe feed roll, a rotary horizontal feed disk adapted to further supportthe leather against the feed roll, and a rotary disk knife arranged atan angle and adapted to skive the leather so as to leave a bevel edge.

The skiving, when it reaches a considerable length, often winds aroundthe shaft of the rapidly revolving disk knife and either clogs orotherwise damages the machine.

, he object of our invention is to provide an attachment which may bereadily installed upon the conventional skiving machines now in commonuse, whereby the skiving. at the moment after cutting, is deflected awayfrom the moving parts of the machine. thereby preventing any delay inoperation or damage thereto.

Our invention is described in the following specification, andillustrated in the accompanying drawing, in which- Figure 1 is a planview of a portion of a skiving machine equipped with our device;

2, is a side elevation of Fig. 1; and

3, is a detail of our invention.

The parts shown in the drawing are well known elements of an ordinaryskiving machino and include a feed roll 1, having an enlarged roughenedsurface 2, a horizontal feed disk arranged substantially perpendicularlyto the feed roll and journaled in a bearing l, a presser foot, 5, and arotary disk knife 6, which is journaled in a fixed bearing 7.

A designates a piece of leather stock from which a skiving B is beingremoved.

Our invention, which is shown in detail in Fig. 3, consists of two mainmembers, 8 and 9, each having a semi-circular portion 10,

Specification of Letters Patent.

Patented 14 i322.

1820. Serial in). 397,347.

said members being detach-ably secured or hinged at one side by a hinge11, and

adapted to be detachably secured the opposite side as by a screw 12passing through an aperture in an outturned end 13 of the member 8. andengaging a threaded recess in a relatively long outturned portion l l ofthe member 9.

The member 8 has an integral wing 15 extending considerably beyond thesemicircular portion.

The relatively long outturned portion 14: of the member 9 has anaperture 17 therein through which extends the inner end of a member 18,which is adjustably secured by means of a set screw 19. The member 18has a downwardly extending portion terminating at its outer end in anenlarged portion 20 having a smooth rounded surface, and tapering toarelatively thin lower end 21.

In the application of our invention, the device is secured around thestationary hearing 7 of the cutting disk 6 by means of the screw 1, at apoint adjacent said disk, and the member 18 adjusted so that theenlarged portion 20 lies immediately beyond the point where the cuttakes place.

As the leather stock A is moved forward by the feed roll 1, the skivingB is deflected upwardly by the tapered enlarged portion 20 ot the member18 until it strikes the wing 15, wb ereby it is further deflected awayfrom the moving parts of the machine to a suitable waste receptacle,thereby precluding any possibility of its winding around the shaft ofthe cutter disk or otherwise interfering with the eiiicient andeconomical. operation of the machine.

lVhile we have described our invention in the best embodiment of whichwe are at present aware, we do not wish to limit ourselves to thespecific form disclosed herein.

Having thus described our invention, what we claim is:

1, An attachment for leather skiving machines having a rotary cuttingdisc, compris ing a member adapted to be detachably secured around thefixed bearing of the rotary cutting disc, and a downwardly extendingdeflecting portion having an enlarged outer end adjustably carried bysaid member, said outer end having a smooth rounded surface and taperingdownwardly, substantially as described.

2. An attachment for leather skiving machines, comprising a ring shapedclamping member, and having an integral tangentially disposed wingportion, and a downwardly ex tending skiving deflecting portion havingan enlarged. outer end adjustably secured to said member.

3. An attachment for leather skiving ma chines comprising a divided ringshaped clamping member having an integral tan gentially disposed Wing.and a skiving defiector carried by said clamping member, said deflectorhaving a deflecting head located in advance of said wing portion insubstantiallythe same vertical plane therewith and in a lower horizontalplane.

4. An attachment tor leather skiving machines having a cutting discrotatably supported by a fixed bearing comprising a member adapted to bedetachably secured around the fixed bearing of the cutting disc andhaving an integral projecting lug or portion provided with an aperture,and a skiving deflector having a shank adjustably held in said aperture,said skiving deflector being positioned adjacent the cutting portion ofthe disc.

5. An attachment for leather skiving machines having a cutting discrotatably supported by a fixed bearing comprising a member adapted to bedetachably secured around the fixed bearing of the cutting disc andhaving an integral projecting lug or portion provided with an aperture,and a skiving defleet-or having a shank adjustably held in saidaperture, said skiving deflector being positioned adjacent the cuttingportion oi the disc, said member having a rearwardly extending deflectoragainst which the skiving is deflected by said first named deflector.

In testimony whereof, we aiiix our signatures.

NELLIE I. FOSTER. HENRY B. LUPIEN.

